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Estimation of primary productivity- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models

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Relation http://eprints.cmfri.org.in/5278/
 
Title Estimation of primary productivity- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models
 
Creator Gopinathan, C P
 
Subject Primary Production
 
Description The primary production can be defined as the amount of organic materials, which
by the activity of organisms in unit time is synthesized in a unit volume of water by the
phytoplankton using the solar energy and extending from the sea surface to the bottom of
the euphotic zone. The micro algae remove dissolved carbon dioxide and micro nutrients
from the water and using solar energy convert them into complex organic compounds of
high potential energy with the help of photosynthetic pigments, the chlorophylls. The
primary productivity will be confined practically entirely to that brought about by
phytoplankton. The growth and distribution is controlled by many factors which may be
physical factors like light, temperature, currents etc., chemical factors like salinity,
dissolved oxygen content, pH, nutrients such as nitrite, nitrate, phosphate and silicate and
trace elements, organic minerals etc., biological factors like grazing and reproduction,
hydrological events like upwelling, sinking, turbulence etc., and seasonal variations like
winter, summer, spring and autumn.
 
Publisher CMFRI; Kochi
 
Date 2004
 
Type Teaching Resource
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/5278/1/17.pdf
Gopinathan, C P (2004) Estimation of primary productivity- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models. [Teaching Resource]